Fix the changes file

changes/bug1667

@@ -1,4 +1,4 @@
-  o Minor features:
+  o Minor features (control port):
     - If the control port is used as the HTTP proxy, responds with
-      a meaningful "This is the Tor control port" message, and logs
-      the event. Fixes bug 1667.
+      a meaningful "This is the Tor control port" message, and log
+      the event. Closes ticket 1667. Patch from Ravi Chandra Padmala.